Coefficient of Conservatism:
Coefficient of Wetness:
A. A. Reznicek
A circumpolar boreal species long known as far south as the north shore area of Lake Superior, but first collected in Michigan in 1984 in a partly shaded meadow area on limestone along the Escanaba River, Delta Co. (Chapman, 1986).
MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. February 18, 2018. http://www.michiganflora.net/species.aspx?id=1305.